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Finding the Fourth Proportional to 49,966.40, 74,959.80 and 16,696.88

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Solution

The fourth proportional to 49,966.40, 74,959.80 and 16,696.88 is: 25,048.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,966.40 : 74,959.80 = 16,696.88 : x
  2. Step 2: Convert to fraction form
    49,966.40/74,959.80 = 16,696.88/x
  3. Step 3: Cross multiply
    49,966.40x = 74,959.80 × 16,696.88
  4. Step 4: Simplify right side
    49,966.40x = 1,251,594,785.42
  5. Step 5: Solve for x
    x = 1,251,594,785.42/49,966.40
  6. Step 6: Final answer
    x = 25,048.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.